More than three clot retrieval bids 'raises bleed risk'

In large-vessel occlusion stroke the number of passes has a greater impact on haemorrhage risk than  procedure time, researchers show

Making more than three attempts to retrieve a thrombus in a patient with acute ischaemic stroke raises the risk of symptomatic intracerebral haemorrhage (ICH) three to four-fold, a registry study shows.

The findings may help neuro-interventionists to make the difficult decision of when to stop the procedure, particularly in patients with large infarcted areas, the German researchers say.

They looked at almost 600 patients from the German Stroke Registry who presented with large vessel

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